diff --git a/bochs/gui/win32dialog.cc b/bochs/gui/win32dialog.cc
index c9401009c..4e4769271 100644
--- a/bochs/gui/win32dialog.cc
+++ b/bochs/gui/win32dialog.cc
@@ -1,5 +1,5 @@
 /////////////////////////////////////////////////////////////////////////
-// $Id: win32dialog.cc,v 1.32 2005-11-30 18:06:24 vruppert Exp $
+// $Id: win32dialog.cc,v 1.33 2005-12-26 18:10:21 vruppert Exp $
 /////////////////////////////////////////////////////////////////////////
 
 #include "config.h"
@@ -490,10 +490,21 @@ static BOOL CALLBACK RTUSBdevDlgProc(HWND hDlg, UINT msg, WPARAM wParam, LPARAM
 
   switch (msg) {
     case WM_INITDIALOG:
-      SetDlgItemText(hDlg, IDUSBDEV1, SIM->get_param_string(BXP_USB1_PORT1)->getptr());
-      SetDlgItemText(hDlg, IDUSBOPT1, SIM->get_param_string(BXP_USB1_OPTION1)->getptr());
-      SetDlgItemText(hDlg, IDUSBDEV2, SIM->get_param_string(BXP_USB1_PORT2)->getptr());
-      SetDlgItemText(hDlg, IDUSBOPT2, SIM->get_param_string(BXP_USB1_OPTION2)->getptr());
+      if (SIM->get_param_string(BXP_USB1_PORT1)->get_enabled()) {
+        SetDlgItemText(hDlg, IDUSBDEV1, SIM->get_param_string(BXP_USB1_PORT1)->getptr());
+        SetDlgItemText(hDlg, IDUSBOPT1, SIM->get_param_string(BXP_USB1_OPTION1)->getptr());
+        SetDlgItemText(hDlg, IDUSBDEV2, SIM->get_param_string(BXP_USB1_PORT2)->getptr());
+        SetDlgItemText(hDlg, IDUSBOPT2, SIM->get_param_string(BXP_USB1_OPTION2)->getptr());
+      } else {
+        EnableWindow(GetDlgItem(hDlg, IDUSBLBL1), FALSE);
+        EnableWindow(GetDlgItem(hDlg, IDUSBLBL2), FALSE);
+        EnableWindow(GetDlgItem(hDlg, IDUSBLBL3), FALSE);
+        EnableWindow(GetDlgItem(hDlg, IDUSBLBL4), FALSE);
+        EnableWindow(GetDlgItem(hDlg, IDUSBDEV1), FALSE);
+        EnableWindow(GetDlgItem(hDlg, IDUSBOPT1), FALSE);
+        EnableWindow(GetDlgItem(hDlg, IDUSBDEV2), FALSE);
+        EnableWindow(GetDlgItem(hDlg, IDUSBOPT2), FALSE);
+      }
       changed = FALSE;
       return TRUE;
     case WM_NOTIFY: